The NJS8497EF from Nisshinbo Micro Devices is a Low Noise Block with Input RF Frequency 3.4 to 4.2 GHz, Output RF Frequency 950 MHz to 1.525 GHz, LO Frequency 5.15 GHz, Gain 59 to 67 dB, Gain Flatness ±5 dB. More details for NJS8497EF can be seen below.
